package Demo09.Phone;

public class Demo01Phone {
    public static void main(String[] args) {
        Phone phone = new Phone();
        phone.call();
        phone.send();
        phone.show();
        System.out.println("===========");
        NewPhone newphone = new NewPhone();
        newphone.show();
        newphone.call();
        newphone.send();

    }
}
